Product Specifications: Size: 205 x 95 x 20 mm Internal Dimensions: 166 x 85.5 x 14 mm Weight: 163g This is a rechargeable smartphone time-locking container. It has been stored after purchase with very little use. Please refrain from purchasing if you are concerned about minor scratches, etc. The box and instruction manual are not included. The usage instructions are as follows: Usage Instructions: 1. Press the left button once briefly to increase the set time by 5 minutes; press it twice in a row to increase the set time by 1 hour. 2. After setting the time, press and hold the left button for 2 seconds, and a 5-second countdown will be displayed. Release the left button to enter a 5-second grace period. During the grace period, pressing the left or right button will cancel the countdown setting and reset it. 3. If no action is taken during the 5-second grace period, the countdown for the set time will begin, and you will not be able to remove your phone until the countdown is complete.